<!-- This comment will put IE 6, 7 and 8 in quirks mode -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>include/shark/Data/DataView.h Source File</title>
<script type="text/javaScript" src="search/search.js"></script>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3.0.1/es5/tex-mml-chtml.js"></script>
<script src="../../mlstyle.js"></script>
<link href="../css/besser.css" rel="stylesheet" type="text/css"/>
</head>
<!-- pretty cool: each body gets an id tag which is the basename of the web page  -->
<!--              and allows for page-specific CSS. this is client-side scripted, -->
<!--              so the id will not yet show up in the served source code -->
<script type="text/javascript">
    jQuery(document).ready(function () {
        var url = jQuery(location).attr('href');
        var pname = url.substr(url.lastIndexOf("/")+1, url.lastIndexOf(".")-url.lastIndexOf("/")-1);
        jQuery('#this_url').html('<strong>' + pname + '</strong>');
        jQuery('body').attr('id', pname);
    });
</script>
<body>
    <div id="shark_old">
        <div id="wrap">
            <div id="header">
                <div id="site-name"><a href="../../sphinx_pages/build/html/index.html">Shark machine learning library</a></div>
                <ul id="nav">
                    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/installation.html">Installation</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/tutorials/tutorials.html">Tutorials</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/benchmark.html">Benchmarks</a>
                    </li>
                    <li class="active">
                        <a href="classes.html">Documentation</a>
                        <ul>
                            <li class="first"></li>
                            <li><a href="../../sphinx_pages/build/html/rest_sources/quickref/quickref.html">Quick references</a></li>
                            <li><a href="classes.html">Class list</a></li>
                            <li class="last"><a href="group__shark__globals.html">Global functions</a></li>
                        </ul>
                    </li>
                </ul>
            </div>
        </div>
    </div>
<div id="doxywrapper">
<!--
    <div id="global_doxytitle">Doxygen<br>Documentation:</div>
-->
    <div id="navrow_wrapper">
<!-- Generated by Doxygen 1.9.8 -->
<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_9d0c4981f10d03078bcfd5c74fe41ce8.html">shark</a></li><li class="navelem"><a class="el" href="dir_f569da3e36425e04a12c3ea53ff3aba2.html">Data</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle"><div class="title">DataView.h</div></div>
</div><!--header-->
<div class="contents">
<a href="_data_view_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">//===========================================================================</span><span class="comment"></span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">/*!</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> * </span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * \brief       Fast lookup for elements in constant datasets</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * </span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * </span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> * </span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> * </span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * \author      O. Krause</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * \date        2012</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> *</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> *</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * \par Copyright 1995-2017 Shark Development Team</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * </span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * &lt;BR&gt;&lt;HR&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> * This file is part of Shark.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * &lt;https://shark-ml.github.io/Shark/&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> * </span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * Shark is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as published </span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * by the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment"> * </span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> * Shark is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment"> * GNU Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment"> * </span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment"> * along with Shark.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"> *</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment"> */</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment">//===========================================================================</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#ifndef SHARK_DATA_DATAVIEW_H</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#define SHARK_DATA_DATAVIEW_H</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="preprocessor">#include &lt;<a class="code" href="_dataset_8h.html">shark/Data/Dataset.h</a>&gt;</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="preprocessor">#include &lt;<a class="code" href="functional_8h.html">shark/Core/utility/functional.h</a>&gt;</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="preprocessor">#include &lt;numeric&gt;</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceshark.html" title="AbstractMultiObjectiveOptimizer.">shark</a> {<span class="comment"></span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment">/// \brief Constant time Element-Lookup for Datasets</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">///</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment">/// Datasets are fast for random lookup of batches. Since batch sizes can be arbitrary structured and</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment">/// changed by the user, there is no way for the Data and LabeledData classes to provide fast random access</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment">/// to single elements. Still, this property is needed quite often, for example for creating subsets,</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment">/// randomize data or tree structures. </span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment">/// A View stores the position of every element in a dataset. So it has constant time access to the elements but</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment">/// it also requires linear memory in the number of elements in the set. This is typically small compared</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment">/// to the size of the set itself, but construction imposes an considerable overhead.</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment">///</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment">/// In contrast to (Un)LabeledData, which is centered around batches, the View is centered around single elements,</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment">/// so its iterators iterate over the elements.</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment">/// For a better support for bagging an index method is added which returns the position of the element in the</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment">/// underlying data container. Also the iterators are indexed and return this index.</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> DatasetType&gt;   <span class="comment">//template parameter can be const!</span></div>
<div class="foldopen" id="foldopen00060" data-start="{" data-end="};">
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html">   60</a></span><span class="keyword">class </span><a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView</a></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>{</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> std::remove_const&lt;DatasetType&gt;::type dataset_type;   <span class="comment">//(non const) type of the underlying dataset</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> dataset_type::element_type value_type;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#af6445b99d55d8f0db60da959d9c68edc">   65</a></span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> dataset_type::const_element_reference <a class="code hl_typedef" href="classshark_1_1_data_view.html#af6445b99d55d8f0db60da959d9c68edc">const_reference</a>;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> dataset_type::batch_type batch_type;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    <span class="comment">// We want to support immutable as well as mutable datasets. So we query whether the dataset</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    <span class="comment">// is mutable and change the reference type to const if the dataset is immutable.</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::mpl::if_&lt;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>        std::is_const&lt;DatasetType&gt;,</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>        <span class="keyword">typename</span> dataset_type::const_element_reference,</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>        <span class="keyword">typename</span> dataset_type::element_reference</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#ae4aed6ddb082c41f4db8025b202ed236">   73</a></span>    &gt;::type <a class="code hl_typedef" href="classshark_1_1_data_view.html#ae4aed6ddb082c41f4db8025b202ed236">reference</a>;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::mpl::if_&lt;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>        std::is_const&lt;DatasetType&gt;,</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        <span class="keyword">typename</span> dataset_type::const_batch_range,</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>        <span class="keyword">typename</span> dataset_type::batch_range</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    &gt;::type batch_range;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    <span class="keyword">template</span>&lt;<span class="keyword">class</span> Reference, <span class="keyword">class</span> View&gt;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="keyword">class </span>IteratorBase: <span class="keyword">public</span> SHARK_ITERATOR_FACADE&lt;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>        IteratorBase&lt;Reference,View&gt;,</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>        value_type,</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        std::random_access_iterator_tag,</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>        Reference</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    &gt;{</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>    <span class="keyword">public</span>:</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>        IteratorBase(){}</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>    </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>        IteratorBase(View&amp; view, std::size_t position)</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>        : mpe_view(&amp;view),m_position(position) {}</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>    </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>        <span class="keyword">template</span>&lt;<span class="keyword">class</span> R,<span class="keyword">class</span> V&gt;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>        IteratorBase(IteratorBase&lt;R,V&gt; <span class="keyword">const</span>&amp; other)</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>        : mpe_view(other.mpe_view),m_position(other.position){}</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>        <span class="comment"></span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment">        /// \brief returns the position of the element referenced by the iterator inside the dataset</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">        ///</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment">        /// This is usefull for bagging, when identical elements between several susbsets are to be identified</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"></span>        std::size_t index()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>            <span class="keywordflow">return</span> mpe_view-&gt;index(m_position);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>        }</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>    <span class="keyword">private</span>:</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>        <span class="keyword">friend</span> <span class="keyword">class </span>SHARK_ITERATOR_CORE_ACCESS;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>        <span class="keyword">template</span> &lt;<span class="keyword">class</span>, <span class="keyword">class</span>&gt; <span class="keyword">friend</span> <span class="keyword">class </span>IteratorBase;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>        <span class="keywordtype">void</span> increment() {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>            ++m_position;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>        }</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>        <span class="keywordtype">void</span> decrement() {</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>            --m_position;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        }</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>        <span class="keywordtype">void</span> advance(std::ptrdiff_t n){</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>            m_position+=n;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>        }</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>    </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>        <span class="keyword">template</span>&lt;<span class="keyword">class</span> R,<span class="keyword">class</span> V&gt;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>        std::ptrdiff_t distance_to(IteratorBase&lt;R,V&gt; <span class="keyword">const</span>&amp; other)<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>            <span class="keywordflow">return</span> (std::ptrdiff_t)other.m_position - (std::ptrdiff_t)m_position;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>        }</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>    </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>        <span class="keyword">template</span>&lt;<span class="keyword">class</span> R,<span class="keyword">class</span> V&gt;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>        <span class="keywordtype">bool</span> equal(IteratorBase&lt;R,V&gt; <span class="keyword">const</span>&amp; other)<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>            <span class="keywordflow">return</span> m_position == other.m_position;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>        }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>        Reference dereference()<span class="keyword"> const </span>{ </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>            <span class="keywordflow">return</span> (*mpe_view)[m_position];</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>        }</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span> </div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>        View* mpe_view;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>        std::size_t m_position;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>    };</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">  137</a></span>    <span class="keyword">typedef</span> IteratorBase&lt;reference,DataView&lt;DatasetType&gt; &gt; <a class="code hl_typedef" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">iterator</a>;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">  138</a></span>    <span class="keyword">typedef</span> IteratorBase&lt;const_reference, DataView&lt;DatasetType&gt; <span class="keyword">const</span> &gt; <a class="code hl_typedef" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">const_iterator</a>;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#ab9a6a0d93261ae6e467ff03dc1ebdc69">  140</a></span>    <a class="code hl_function" href="classshark_1_1_data_view.html#ab9a6a0d93261ae6e467ff03dc1ebdc69">DataView</a>(){}</div>
<div class="foldopen" id="foldopen00141" data-start="{" data-end="}">
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#ae1cb988a3c7a5d0d4bf13eec0af75e90">  141</a></span>    <a class="code hl_function" href="classshark_1_1_data_view.html#ae1cb988a3c7a5d0d4bf13eec0af75e90">DataView</a>(DatasetType&amp; <a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>)</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>    :m_dataset(<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>),m_indices(<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>.numberOfElements())</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>    {</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>        std::size_t <a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a> = 0;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>        <span class="keywordflow">for</span>(std::size_t i = 0; i != <a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>.numberOfBatches(); ++i){</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>            std::size_t <a class="code hl_function" href="namespaceshark.html#af2ab10364feb8a631e0866dcf2f1a4ad">batchSize</a> = <a class="code hl_struct" href="structshark_1_1_batch.html" title="class which helps using different batch types">Batch&lt;value_type&gt;::size</a>(<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>.batch(i));</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>            <span class="keywordflow">for</span>(std::size_t j = 0; j != <a class="code hl_function" href="namespaceshark.html#af2ab10364feb8a631e0866dcf2f1a4ad">batchSize</a>; ++j,++<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>){</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>                m_indices[<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>].batch = i;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>                m_indices[<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>].positionInBatch = j;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>                m_indices[<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>].datasetIndex = <a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>            }</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>        }</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>    }</div>
</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"></span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">    /// create a subset of the dataset type using only the elemnt indexed by indices</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"></span>    <span class="keyword">template</span>&lt;<span class="keyword">class</span> IndexRange&gt;</div>
<div class="foldopen" id="foldopen00157" data-start="{" data-end="}">
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a436f5cd8b4ebf4e709edd2932922f801">  157</a></span>    <a class="code hl_function" href="classshark_1_1_data_view.html#a436f5cd8b4ebf4e709edd2932922f801" title="create a subset of the dataset type using only the elemnt indexed by indices">DataView</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view, IndexRange <span class="keyword">const</span>&amp; indices)</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    :m_dataset(view.m_dataset),m_indices(indices.<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>())</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>    {</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>        <span class="keywordflow">for</span>(std::size_t i = 0; i != m_indices.size(); ++i)</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>            m_indices[i] = view.m_indices[indices[i]];</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>    }</div>
</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span> </div>
<div class="foldopen" id="foldopen00164" data-start="{" data-end="}">
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a096d8cc31117ca710fe41f79c46a9faf">  164</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#ae4aed6ddb082c41f4db8025b202ed236">reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a096d8cc31117ca710fe41f79c46a9faf">operator[]</a>(std::size_t position){</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(position &lt; <a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>        Index <span class="keyword">const</span>&amp; <a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a> = m_indices[position];</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>        <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceshark.html#a1531880b9b4076854b0b26441d353242">getBatchElement</a>(m_dataset.batch(<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>.batch),<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>.positionInBatch);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    }</div>
</div>
<div class="foldopen" id="foldopen00169" data-start="{" data-end="}">
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a4b1faee54e297b25d77ef24375d22fe2">  169</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#af6445b99d55d8f0db60da959d9c68edc">const_reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a4b1faee54e297b25d77ef24375d22fe2">operator[]</a>(std::size_t position)<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(position &lt; <a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>        Index <span class="keyword">const</span>&amp; <a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a> = m_indices[position];</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>        <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceshark.html#a1531880b9b4076854b0b26441d353242">getBatchElement</a>(m_dataset.batch(<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>.batch),<a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>.positionInBatch);</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>    }</div>
</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>    </div>
<div class="foldopen" id="foldopen00175" data-start="{" data-end="}">
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a7652743856e2ef532984d54ae1eb6104">  175</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#ae4aed6ddb082c41f4db8025b202ed236">reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a7652743856e2ef532984d54ae1eb6104">front</a>(){</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>() != 0);</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>        <span class="keywordflow">return</span> (*<span class="keyword">this</span>)[0];</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>    }</div>
</div>
<div class="foldopen" id="foldopen00179" data-start="{" data-end="}">
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#ac3076578a2ecd9caf720e970976bec8d">  179</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#af6445b99d55d8f0db60da959d9c68edc">const_reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#ac3076578a2ecd9caf720e970976bec8d">front</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>() != 0);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>        <span class="keywordflow">return</span> (*<span class="keyword">this</span>)[0];</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>    }</div>
</div>
<div class="foldopen" id="foldopen00183" data-start="{" data-end="}">
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#af00a7bc78ffc60fcacedbe291b4d24e6">  183</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#ae4aed6ddb082c41f4db8025b202ed236">reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#af00a7bc78ffc60fcacedbe291b4d24e6">back</a>(){</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>() != 0);</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>        <span class="keywordflow">return</span> (*<span class="keyword">this</span>)[<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>()-1];</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>    }</div>
</div>
<div class="foldopen" id="foldopen00187" data-start="{" data-end="}">
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#aceed1b5fafb9bf86149152708aedb979">  187</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#af6445b99d55d8f0db60da959d9c68edc">const_reference</a> <a class="code hl_function" href="classshark_1_1_data_view.html#aceed1b5fafb9bf86149152708aedb979">back</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>() != 0);</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>        <span class="keywordflow">return</span> (*<span class="keyword">this</span>)[<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>()-1];</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>    }</div>
</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"></span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment">    /// \brief Position of the element in the dataset.</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">    ///</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">    /// This is useful for bagging, when identical elements among</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">    /// several subsets are to be identified.</span></div>
<div class="foldopen" id="foldopen00196" data-start="{" data-end="}">
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc">  196</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_data_view.html#a8eb1ce492f50ab67e4c222f1315f83cc" title="Position of the element in the dataset.">index</a>(std::size_t position)<span class="keyword">const</span>{</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>        <span class="keywordflow">return</span> m_indices[position].datasetIndex;</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>    }</div>
</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"></span> </div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment">    /// \brief Index of the batch holding the element.</span></div>
<div class="foldopen" id="foldopen00201" data-start="{" data-end="}">
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a4c811224fc77356555fcecfb5b41cb65">  201</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_data_view.html#a4c811224fc77356555fcecfb5b41cb65" title="Index of the batch holding the element.">batch</a>(std::size_t position)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>        <span class="keywordflow">return</span> m_indices[position].batch;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>    }</div>
</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"></span> </div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment">    /// \brief Index inside the batch holding the element.</span></div>
<div class="foldopen" id="foldopen00206" data-start="{" data-end="}">
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a892be77ecf008f78e44452b1a201980a">  206</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_data_view.html#a892be77ecf008f78e44452b1a201980a" title="Index inside the batch holding the element.">positionInBatch</a>(std::size_t position)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>        <span class="keywordflow">return</span> m_indices[position].positionInBatch;</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>    }</div>
</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span> </div>
<div class="foldopen" id="foldopen00210" data-start="{" data-end="}">
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">  210</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>        <span class="keywordflow">return</span> m_indices.size();</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>    }</div>
</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span> </div>
<div class="foldopen" id="foldopen00214" data-start="{" data-end="}">
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a3e7c59021eff4745396ed9951c2f05ca">  214</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">iterator</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a3e7c59021eff4745396ed9951c2f05ca">begin</a>(){</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>        <span class="keywordflow">return</span> <a class="code hl_typedef" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">iterator</a>(*<span class="keyword">this</span>, 0);</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>    }</div>
</div>
<div class="foldopen" id="foldopen00217" data-start="{" data-end="}">
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a02edf0f65deefa88fbcaef18276b5041">  217</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">const_iterator</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a02edf0f65deefa88fbcaef18276b5041">begin</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>        <span class="keywordflow">return</span> <a class="code hl_typedef" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">const_iterator</a>(*<span class="keyword">this</span>, 0);</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>    }</div>
</div>
<div class="foldopen" id="foldopen00220" data-start="{" data-end="}">
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a238dbacc7eded17835f90c6edccdcb95">  220</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">iterator</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a238dbacc7eded17835f90c6edccdcb95">end</a>(){</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>        <span class="keywordflow">return</span> <a class="code hl_typedef" href="classshark_1_1_data_view.html#ab998c6011a12ee2a3fd7d9215564a582">iterator</a>(*<span class="keyword">this</span>, <a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>    }</div>
</div>
<div class="foldopen" id="foldopen00223" data-start="{" data-end="}">
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a232c001d3d8c239031040dbbb3eb7437">  223</a></span>    <a class="code hl_typedef" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">const_iterator</a> <a class="code hl_function" href="classshark_1_1_data_view.html#a232c001d3d8c239031040dbbb3eb7437">end</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>        <span class="keywordflow">return</span> <a class="code hl_typedef" href="classshark_1_1_data_view.html#a8040495749c12a5d12fafe92bef9769d">const_iterator</a>(*<span class="keyword">this</span>, <a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>    }</div>
</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>    </div>
<div class="foldopen" id="foldopen00227" data-start="{" data-end="}">
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"><a class="line" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">  227</a></span>    dataset_type <span class="keyword">const</span>&amp; <a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>        <span class="keywordflow">return</span> m_dataset;</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>    }</div>
</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>    dataset_type m_dataset;</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>    <span class="comment">// Stores for an element of the dataset, at which position of which batch it is located</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>    <span class="comment">// as well as the real index of the element inside the dataset</span></div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>    <span class="keyword">struct </span>Index{</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>        std::size_t batch;<span class="comment">//the batch in which the element is located</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>        std::size_t positionInBatch;<span class="comment">//at which position in the batch it is</span></div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>        std::size_t datasetIndex;<span class="comment">//index inside the dataset</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>    };</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>    std::vector&lt;Index&gt; m_indices;<span class="comment">//stores for every element of the set it&#39;s position inside the dataset</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>};</div>
</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment"></span> </div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">/**</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment"> * \ingroup shark_globals</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment"> *</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment"> * @{</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment"> */</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"></span> </div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">/// \brief Creates a subset of a DataView with elements indexed by indices</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">///</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">/// \param view the view for which the subset is to be created</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">/// \param indizes the index of the elements to be stored in the view </span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> DatasetType,<span class="keyword">class</span> IndexRange&gt;</div>
<div class="foldopen" id="foldopen00253" data-start="{" data-end="}">
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga420a47af92d8da0f5e95a7d158521db9">  253</a></span><a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <a class="code hl_function" href="group__shark__globals.html#ga420a47af92d8da0f5e95a7d158521db9" title="Creates a subset of a DataView with elements indexed by indices.">subset</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view, IndexRange <span class="keyword">const</span>&amp; indizes){</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>    <span class="comment">//O.K. todo: Remove constructor later on, this is a quick fix.</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>    <span class="keywordflow">return</span> <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a>(view,indizes);</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>}</div>
</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment"></span> </div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">/// \brief creates a random subset of a DataView with given size</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">///</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">/// \param view the view for which the subset is to be created</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">/// \param size the size of the subset</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00263" data-start="{" data-end="}">
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga6d5f76f9a5891a8675c3ee297d57ad48">  263</a></span><a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <a class="code hl_function" href="group__shark__globals.html#ga6d5f76f9a5891a8675c3ee297d57ad48" title="creates a random subset of a DataView with given size">randomSubset</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view, std::size_t size){</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span>    std::vector&lt;std::size_t&gt; indices(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>    std::iota(indices.begin(),indices.end(),0);</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>    <a class="code hl_function" href="namespaceshark.html#a3acb5af6cfb96640aaf21d3e8be58f80" title="random_shuffle algorithm which stops after acquiring the random subsequence for [begin,...">partial_shuffle</a>(indices.begin(),indices.begin()+size,indices.end());</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#ga420a47af92d8da0f5e95a7d158521db9" title="Creates a subset of a DataView with elements indexed by indices.">subset</a>(view,boost::make_iterator_range(indices.begin(),indices.begin()+size));</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span>}</div>
</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment"></span> </div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">/// \brief Creates a batch given a set of indices</span></div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment">///</span></div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment">/// \param view the view from which the batch is to be created</span></div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment">/// \param indizes the set of indizes defining the batch</span></div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> DatasetType,<span class="keyword">class</span> IndexRange&gt;</div>
<div class="foldopen" id="foldopen00275" data-start="{" data-end="}">
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga229ee860771047d3994953fdda9f5a6a">  275</a></span><span class="keyword">typename</span> DataView&lt;DatasetType&gt;::batch_type <a class="code hl_function" href="group__shark__globals.html#ga229ee860771047d3994953fdda9f5a6a" title="Creates a batch given a set of indices.">subBatch</a>(</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>    <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view, </div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>    IndexRange <span class="keyword">const</span>&amp; indizes</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>){</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>    <span class="comment">//create a subset of the view containing the elements of the batch</span></div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>    <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> batchElems = <a class="code hl_function" href="group__shark__globals.html#ga420a47af92d8da0f5e95a7d158521db9" title="Creates a subset of a DataView with elements indexed by indices.">subset</a>(view,indizes);</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>    </div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>    <span class="comment">//and now use the batch range construction to create it</span></div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceshark.html#a5478d144c4c997faf5c246dd8e2f85b8" title="creates a batch from a range of inputs">createBatch</a>(batchElems);</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>}</div>
</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment"></span> </div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment">/// \brief Creates a random batch of a given size</span></div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">///</span></div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">/// \param view the view from which the batch is to be created</span></div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">/// \param size the size of the batch</span></div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00291" data-start="{" data-end="}">
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga43b37371406e040f057680d5e7182341">  291</a></span><span class="keyword">typename</span> DataView&lt;DatasetType&gt;::batch_type <a class="code hl_function" href="group__shark__globals.html#ga43b37371406e040f057680d5e7182341" title="Creates a random batch of a given size.">randomSubBatch</a>(</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span>    <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view, </div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span>    std::size_t size</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>){</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>    std::vector&lt;std::size_t&gt; indices(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>());</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>    std::iota(indices.begin(),indices.end(),0);</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>    <a class="code hl_function" href="namespaceshark.html#a3acb5af6cfb96640aaf21d3e8be58f80" title="random_shuffle algorithm which stops after acquiring the random subsequence for [begin,...">partial_shuffle</a>(indices.begin(),indices.begin()+size,indices.end());</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#ga229ee860771047d3994953fdda9f5a6a" title="Creates a batch given a set of indices.">subBatch</a>(view,boost::make_iterator_range(indices.begin(),indices.begin()+size));</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span>}</div>
</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment"></span> </div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment">/// \brief Creates a View from a dataset.</span></div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">///</span></div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">/// This is just a helper function to omit the actual type of the view</span></div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">///</span></div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">/// \param set the dataset from which to create the view</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00307" data-start="{" data-end="}">
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga4adbf0bc9537c1829f1e1cd281de560b">  307</a></span><a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a>  <a class="code hl_function" href="group__shark__globals.html#ga4adbf0bc9537c1829f1e1cd281de560b" title="Creates a View from a dataset.">toView</a>(DatasetType&amp; set){</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>    <span class="keywordflow">return</span> <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a>(set);</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>}</div>
</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment"></span> </div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">/// \brief Creates a new dataset from a View.</span></div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">///</span></div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">/// When the elements of a View needs to be processed repeatedly it is often better to use</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">/// the packed format of the Dataset again, since then the faster batch processing can be used</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment">///</span></div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">/// \param view the view from which to create the new dataset</span></div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">/// \param batchSize the size of the batches in the dataset</span></div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="keyword">typename</span> DataView&lt;T&gt;::dataset_type </div>
<div class="foldopen" id="foldopen00320" data-start="{" data-end="}">
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga3c0660922e34389d005bb81e9bde0c18">  320</a></span><a class="code hl_function" href="group__shark__globals.html#ga3c0660922e34389d005bb81e9bde0c18" title="Creates a new dataset from a View.">toDataset</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;T&gt;</a> <span class="keyword">const</span>&amp; view, std::size_t <a class="code hl_function" href="namespaceshark.html#af2ab10364feb8a631e0866dcf2f1a4ad">batchSize</a> = <a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;T&gt;::dataset_type::DefaultBatchSize</a>){</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span>    <span class="keywordflow">if</span>(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>() == 0)</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>        <span class="keywordflow">return</span> <span class="keyword">typename</span> DataView&lt;T&gt;::dataset_type();</div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span>    <span class="comment">//O.K. todo: this is slow for sparse elements, use subBatch or something similar.</span></div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>    std::size_t elements = view.<a class="code hl_function" href="classshark_1_1_data_view.html#a71ba14d4f067dc437d6683dac9982f77">size</a>();</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>    <span class="keyword">typename</span> DataView&lt;T&gt;::dataset_type dataset(elements,view[0],<a class="code hl_function" href="namespaceshark.html#af2ab10364feb8a631e0866dcf2f1a4ad">batchSize</a>);</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>    std::copy(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a3e7c59021eff4745396ed9951c2f05ca">begin</a>(),view.<a class="code hl_function" href="classshark_1_1_data_view.html#a238dbacc7eded17835f90c6edccdcb95">end</a>(),dataset.elements().<a class="code hl_function" href="classshark_1_1_data_view.html#a3e7c59021eff4745396ed9951c2f05ca">begin</a>());</div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span>    <span class="keywordflow">return</span> dataset;</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>}</div>
</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment"></span> </div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">/// Return the number of classes (size of the label vector)</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">/// of a classification dataset with RealVector label encoding.</span></div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00333" data-start="{" data-end="}">
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga884afb6868800ff6f15e9a3dc7f1c73b">  333</a></span>std::size_t <a class="code hl_function" href="group__shark__globals.html#ga1fee3b5830ae11a78109e8c0265c6569" title="Return the number of classes of a set of class labels with unsigned int label encoding.">numberOfClasses</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view){</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#ga1fee3b5830ae11a78109e8c0265c6569" title="Return the number of classes of a set of class labels with unsigned int label encoding.">numberOfClasses</a>(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>());</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>}</div>
</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment"></span> </div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment">/// Return the input dimensionality of the labeled dataset represented by the view</span></div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00339" data-start="{" data-end="}">
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga148ab5a691f06b225ccfc21d9e039cef">  339</a></span>std::size_t <a class="code hl_function" href="group__shark__globals.html#gae537f0e90beb970397cd7bb9250984e2" title="Return the input dimensionality of a labeled dataset.">inputDimension</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view){</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#gae537f0e90beb970397cd7bb9250984e2" title="Return the input dimensionality of a labeled dataset.">inputDimension</a>(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>());</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>}<span class="comment"></span></div>
</div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">/// Return the label dimensionality of the labeled dataset represented by the view</span></div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00344" data-start="{" data-end="}">
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga248204f65ae4b8c30604f5a609cb7bf6">  344</a></span>std::size_t <a class="code hl_function" href="group__shark__globals.html#ga3006553139477e356ee75cd85c190d7c" title="Return the label/output dimensionality of a labeled dataset.">labelDimension</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view){</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#ga3006553139477e356ee75cd85c190d7c" title="Return the label/output dimensionality of a labeled dataset.">labelDimension</a>(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>());</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>}</div>
</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment"></span> </div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">/// Return the dimensionality of the dataset represented by the view</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment"></span><span class="keyword">template</span> &lt;<span class="keyword">class</span> DatasetType&gt;</div>
<div class="foldopen" id="foldopen00350" data-start="{" data-end="}">
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"><a class="line" href="group__shark__globals.html#ga5ef7f15d261cffb78c3b8e91765619a2">  350</a></span>std::size_t <a class="code hl_function" href="group__shark__globals.html#ga6231b46b09731352a3cac40709a9625f" title="Return the dimensionality of a dataset.">dataDimension</a>(<a class="code hl_class" href="classshark_1_1_data_view.html" title="Constant time Element-Lookup for Datasets.">DataView&lt;DatasetType&gt;</a> <span class="keyword">const</span>&amp; view){</div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="group__shark__globals.html#ga6231b46b09731352a3cac40709a9625f" title="Return the dimensionality of a dataset.">dataDimension</a>(view.<a class="code hl_function" href="classshark_1_1_data_view.html#a20c3d8aa10aa6056277df2f02261033b">dataset</a>());</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span>}</div>
</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span> </div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment"></span> </div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">/** @*/</span></div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span>}</div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="preprocessor">#endif</span></div>
</div><!-- fragment --></div><!-- contents -->
</div>
</body>
</html>
